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Minimally Invasive Non- Surgical Periodontal Therapy of Intrabony Defects: Healing Patterns and Smoking Impact
Sponsor: University of Turku
Summary
This study is consisted of two arms. At first, a randomized controlled clinical trial will be conducted. Eighty systematically healthy, non-smoker patients with Periodontitis stage III or IV, grades B to C will be included. Each patient will have to present one intrabony defect site ( site with Probing Depth (PD)\>5mm and radiographic defect depth \> or =3mm). The patients will be randomized in two groups, regarding the treatment intervention of the intrabony defects: Group A (conventional Non-Surgical Periodontal Treatment, cNSPT) and Group B (Minimally Invasive Non-Surgical Therapy, MINST). At 5 days and 3 months following intervention, GCF samples will be collected from the intrabony defects in order to assess the molecular healing patterns through intergroup comparisons of inflammation and healing biomarkers. Then two prospective cohort studies will be conducted. The Group B patients will be matched with forty systematically healthy, smoker patients (Group C) with Periodontitis stage III or IV, grades B to C with each one presenting one intrabony defect site ( site with Probing Depth (PD)\>5mm and radiographic defect depth \> or =3mm). Then MINST will be performed in the patients of Group C and the two groups will be compared regarding the clinical and radiographic data obtained by clinical and radiographic examinations performed in both groups' intrabony defects pre-treatment and 6 months following the intervention (first prospective study) and regarding the differences in regeneration biomarkers in GCF samples obtained from the intrabony defects 5 days and 3 months post-treatment (second prospective study).
Official title: Minimally Invasive Non- Surgical Periodontal Therapy of Intrabony Defects: Molecular Healing Patterns and the Impact of Smoking on Outcomes
Key Details
Gender
All
Age Range
18 Years - 80 Years
Study Type
INTERVENTIONAL
Enrollment
120
Start Date
2025-09
Completion Date
2027-04
Last Updated
2025-08-19
Healthy Volunteers
No
Conditions
Interventions
Minimally Invasive Non- Surgical Periodontal Therapy (MINST)
The procedure consists of thorough debridement of the root surface through a subpapillary access using exclusively piezoelectric devices with specific thin and delicate tips (EMS, Switzerland) and 4X magnification loupes, taking care to minimize the soft tissue trauma and to stimulate the formation of a stable blood clot
conventional Non-Surgical Periodontal Treatment (cNSPT)
The intervention consists of thorough debridement of the root surface under local anaesthesia, using conventional piezoelectric devices and hand instruments